2014-03-31 Version 2.0.0

	Major rewrite. Note: #slice and #slice! are incompatible with
	prior versions.

	Sarahs can be set to negative mode :actual to allow negative
	indexes to be actual keys instead of being relative to the end
	of the array.

	Sparse, integer-indexed elements are now stored separately from
	the non-numerically keyed elements.

	Elements in the sparse array are re-indexed on shift, unshift, and
	delete, just like sequential elements. (Re-indexing never occurs
	in negative mode :actual, however.)

	Many more Array and Hash methods have been implemented.

2013-07-28 Version 0.0.4
	Fixed a bug in the insert! method.

2013-07-13 Version 0.0.3
	Added << alias for push.

2013-07-08 Version 0.0.2
	Packaging fixes and some documentation cleanup.

2013-07-08 Version 0.0.1
	First release.